request_code.py

import asyncio
import re
import sys
from pathlib import Path

from telethon import TelegramClient

SESSION_DIR = Path(__file__).resolve().parent / "session"

APP_ID = 2040
APP_HASH = "b18441a1ff607e10a989891a5462e627"
DEVICE_MODEL = "Windows 11 x64"
SYSTEM_VERSION = "Satellite C660"
APP_VERSION = "6.5.1 x64"
LANG_CODE = "en"
SYSTEM_LANG_CODE = "en-US"


def norm_phone(s: str) -> str:
    d = re.sub(r"\D", "", s)
    return "+" + d if d else s


async def request_code(phone: str, proxy=None) -> bool:
    phone = norm_phone(phone)
    if not re.fullmatch(r"\+\d+", phone):
        print("Invalid phone")
        return False
    session_path = SESSION_DIR / ("request_" + re.sub(r"\D", "", phone))
    client = TelegramClient(
        str(session_path),
        APP_ID,
        APP_HASH,
        proxy=proxy,
        device_model=DEVICE_MODEL,
        system_version=SYSTEM_VERSION,
        app_version=APP_VERSION,
        lang_code=LANG_CODE,
        system_lang_code=SYSTEM_LANG_CODE,
    )
    try:
        await client.connect()
        if await client.is_user_authorized(): 
            return False
        await client.send_code_request(phone)
        print("Code requested for", phone)
        return True
    except Exception: 
        return False
    finally:
        d = client.disconnect()
        if d is not None:
            await d


if __name__ == "__main__":
    phone = sys.argv[1].strip() if len(sys.argv) > 1 else input("Phone: ").strip()
    if not phone:
        sys.exit(1)
    ok = asyncio.run(request_code(phone))
    sys.exit(0 if ok else 1)